"""
题目：找到年龄最大的人，并输出。请找出程序中有什么问题。
"""
if __name__ == '__main__':
	person = {"li":18,"wang":69,"zhang":23,"sun":32}
	m = 'li'
	for key in person.keys():
		if person[m]<person[key]:
			m = key
			
	print("%s,%d" % (m,person[m]))